Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2001-2003 Lexus GS430 . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.

PART

COLOR

LOCATION

12 VOLT
CONSTANT

WHITE/BLUE (+)

IGNITION SWITCH HARNESS

STARTER

BLACK (+)

IGNITION SWITCH HARNESS

STARTER
2

N/A

IGNITION
1

BLACK/YELLOW (+)

IGNITION SWITCH HARNESS

IGNITION
2

BLACK/WHITE (+)

IGNITION SWITCH HARNESS

IGNITION
3

N/A

ACCESSORY/HEATER
BLOWER 1

BLUE/YELLOW (+)

IGNITION SWITCH HARNESS

ACCESSORY/HEATER
BLOWER 2

N/A

KEYSENSE

YELLOW (-)

IGNITION SWITCH HARNESS

PARKING
LIGHTS ( - )

RED/YELLOW (-)

UNDER STEERING COLUMN

PARKING
LIGHTS ( + )

GREEN (+)

@ BOTTOM RIGHT OF FUSE PANEL

POWER LOCK

See NOTE *1

See DIAGRAM

POWER UNLOCK

See NOTE *1

See DIAGRAM

DOOR TRIGGER

See NOTE *2

@ DOOR MODULE IN EACH DOOR

DOMELIGHT
SUPERVISION

GREEN (-) See NOTE *3

@ PIN 13, IN 25-PIN PLUG, AT BODY ECU, See NOTE *3

TRUNK RELEASE

BLUE (+)

@ 18-PIN PLUG, IN DRIVERS KICK PANEL

SLIDING
POWER DOOR

N/A

HORN

GREEN/BLACK (-)

@ STEERING COLUMN HARNESS

TACH

BLACK/YELLOW

@ PIN 16, IN 28-PIN PLUG INSIDE ECU BOX See NOTE *4

WAIT TO
START LIGHT

N/A

BRAKE

GREEN/WHITE (+)

@ 20-PIN PLUG, IN DRIVERS KICK PANEL

FACTORY
ALARM DISARM

Disarms with KEYSENSE Wire

@ IGNITION SWITCH HARNESS

ANTI-THEFT

TRANSPONDER, REQUIRES 791 BYPASS and EXTRA IGNITION KEY

TRANSPONDER @ IGNITION SWITCH TUMBLER

EXTRA
INFORMATION

NOTE *1 THIS VEHICLE'S DOORLOCKS ARE SPECIAL AND WILL REQUIRE AN EXTRA RELAY, PART #775 AND 2 DIODES, TO CONNECT, See DIAGRAM
NOTE *2 THE DRIVERS DOOR TRIGGER IS RED/WHITE(-),THE FRONT PASSENGER DOOR IS RED/GREEN(-),THE LEFT REAR IS RED/WHITE(-),THE RIGHT REAR IS RED/YELLOW(-). WHEN CONNECTING TO AN ALARM SYSTEM, USE ALL 4 DOOR TRIGGER WIRES AND DIODE ISOLATE, TO CONNECT, See DIAGRAM
NOTE *3 THE BODY ECU (ELECTRONIC CONTROL MODULE) IS LOCATED IN THE PASSENGER KICK PANEL.
NOTE *4 THE ECU (ELECTRONIC CONTROL MODULE) IS LOCATED UNDER THE HOOD ON THE DRIVERS SIDE.